Kamara and accomplice Joshua Jordan, 20, then fled the mini-supermarket before allegedly trying to rob another woman 10 minutes later in Hackney, East London, on March 10 this year.

Harrowing CCTV shows Mrs Bui wrestling with the robbers as one sprays her four times, including in the right eye.

She desperately tries to reach for the alarm after the "five" attackers invade the store and try to rush behind the till.

Mrs Bui later told police one "kept spraying me" and then they "punched me hard in the right shoulder and kicked me on the floor".

Met Police

The robbers fled empty handed but not before kicking and punching the female shopkeeper to the ground

As the gang fled empty-handed, she poured water over her face to prevent serious injury but was still left with chemical burns to her mouth, reported Mail Online.

Kamara and Jordan, who are on trial at Wood Green Crown Court in London, are accused of dragging another Vietnamese woman Thi Le Nguyen to the ground before spraying her with drain cleaner and robbing her.

Her Michael Kors handbag containing £575 in cash, her bank card and mobile phones was stolen.

Prosecutor Benn Maguire said the robbers deliberately sprayed acid into their mouths to "silence their shouts for help".

Met Police

Quyen Bu bravely tried to fight back during the robbery at the mini-supermarket in Hackney

He told the court: "They selected lone females at night and to instill fear in the minds of their victims they sprayed acid into their faces.

"It was a vicious and cowardly attacks to disable their victims.

"Consider the extreme pain, the fear, the horror these women must have experienced."

Both defendants admitted the first robbery on March 10 and Kamara pleaded guilty to applying a corrosive liquid to burn, disfigure or cause bodily harm to Mrs Bui.

Jordan denies the second charge, and both deny attacking Miss Nguyen.

Three accomplices have not yet been traced by police.

The trial continues.

MOST READ IN NEWS

TORTURED TO DEATH

Chilling pic of starved nanny, 21, hours before she was killed & burned

FINAL CALL

Prince Harry and Chelsy Davy 'shared tearful call a week before Royal Wedding'